EP3581994B1 - Light guide plate positioning structure, backlight module, and display apparatus - Google Patents
Light guide plate positioning structure, backlight module, and display apparatus Download PDFInfo
- Publication number
- EP3581994B1 EP3581994B1 EP17842377.8A EP17842377A EP3581994B1 EP 3581994 B1 EP3581994 B1 EP 3581994B1 EP 17842377 A EP17842377 A EP 17842377A EP 3581994 B1 EP3581994 B1 EP 3581994B1
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- EP
- European Patent Office
- Prior art keywords
- lgp
- positioning
- positioning members
- incident surface
- positioning structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000002310 reflectometry Methods 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910001041 brightray Inorganic materials 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
Definitions
- the present invention relates to a light guide plate (LGP) positioning structure, a backlight module and a display device.
- LGP light guide plate
- CN 204 153 707 U discloses a fixing structure of a LGP and a backlight source structure with the fixing structure.
- the fixing structure of the LGP is for fixing the LGP on a rubber frame with a light source assembly.
- a plurality of outwards protruding clamping buckles are arranged on two opposite side edges of the LGP.
- Clamping slots matched with the clamping buckles are formed in positions, which correspond to the clamping buckles, on the inner side of the rubber frame.
- the clamping buckles are matched with the clamping slots.
- the range in which the perpendicular distance from the position to the light source assembly is smaller than 1/3 of the length of the side edge of the LGP is a light source region.
- the clamping buckles in the light source region are chamfered, and the radiuses of chamfers are 0.4-0.6mm.
- the chamfered clamping buckle structures emit the light rays towards different angles, so that the condensation effect is weakened, and dazzling bright rays on the light guide plate can be attenuated and even eliminated; the good luminous effect of the light guide plate is guaranteed.
- LGP light guide plate
- an embodiment provides a light guide plate (LGP) positioning structure, which comprises a plurality of positioning members 20 disposed between a first surface of a LGP 3 and a back plate 1.
- a first surface of the LGP 3 is adjacent to an incident surface of the LGP 3.
- the color of the positioning members near the incident surface is darker than the color of the positioning members away from the incident surface.
- the positioning member near the incident surface is a first positioning member 201
- the positioning member away from the incident surface is a second positioning member 202.
- the embodiment of the present disclosure is not limited thereto. For instance, three, four or more positioning members may be arranged.
- the color of the first positioning member 201 near the incident surface is black, and the color of the second positioning member 202 away from the incident surface is white. That is to say, the surface reflectivity of the first positioning member 201 near the incident surface is lower than the surface reflectivity of the second positioning member 202 away from the incident surface.
- the first positioning member is made from black rubber, the surface reflectivity of which is less than or equal to about 30% and greater than or equal to about 5%; and the second positioning member is made from white rubber, the surface reflectivity of which is less than or equal to about 98% and greater than or equal to about 45%.
- the ratio of the reflectivity of the positioning members arranged from an incident end to a far-reaching position is directly proportional to the ratio of the distance from the positioning members to the light source.
- the embodiment of the present disclosure is not limited thereto.
- the color of the positioning members may be gradually lighter from a proximal end near the incident surface to a distal end away from the incident surface. That is to say, the surface reflectivity of the positioning members is gradually increased from the proximal end near the incident surface to the distal end away from the incident surface.
- the setting form of the color of the plurality of positioning members arranged along a first direction may be various, for example, they may be arranged regularly or irregularly.
- the color of the plurality of positioning members is gradually changed from darker to lighter along the X direction in FIG. 1 , namely the first direction, that is to say, the reflectivity is gradually increased along the X direction in FIG. 1 .
- the first direction is the direction extended from a first end of the first surface adjacent to the incident surface to a second end opposite to the first end, and the first direction refers to a direction parallel to the direction from the first end to the second end.
- the X direction is unidirectional.
- protrusions or recessions are disposed on one surface of the positioning member 20 contacting the LGP 3.
- the number of the protrusions 5 on the positioning members near the incident surface is less than the number of the protrusions 5 on the positioning members away from the incident surface.
- the light scattering effect is enhanced at contact positions. Scattered light is emitted from a light-emitting surface of the LGP, where the brightness of the light-emitting surface of the LGP is increased.
- the number of the protrusions 5 disposed at distal-end positions away from the incident surface, where shadows can be easily generated, is correspondingly increased to enhance the brightness at the positions, and the bright and dark problem can be further solved.
- the position and the number of the plurality of protrusions 5 arranged along the first direction may be various, for example, they may be arranged regularly or irregularly. In the embodiment, the number of the protrusions 5 on the plurality of positioning members is gradually increased along the first direction.
- the number of the recessions on the positioning members near the incident surface is greater than the number of the recessions on the positioning members away from the incident surface.
- the recessions on the positioning members do not contact the side surface of the LGP.
- the light scattering effect is reduced here, and the brightness of light emitted from the light-emitting surface of the LGP is reduced.
- the number of the recessions at distal-end positions away from the incident surface, where the shadows can be easily generated, is correspondingly decreased to enhance the brightness at the positions, and the bright and dark problem can be further solved.
- the position and the number of the plurality of recessions arranged along the first direction may be various, may be regular and may also be irregular. In the embodiment, the number of the recessions on the plurality of positioning members is gradually reduced along the first direction.
- positioning grooves 30 are formed on the first surface of the LGP 3, and the positioning members 20 are received in the positioning grooves 30.
- the structural form of the positioning grooves 30 is adapted to that of the positioning members 20.
- An embodiment of the present disclosure also provides a backlight module, which comprises the LGP positioning structure.
- An embodiment of the present disclosure also provides a display device, which comprises the backlight module.
- the display device may be a liquid crystal display (LCD) device, for instance, and it is not limited to be: a mobile phone, a tablet PC, a TV, a display, a notebook computer, a digital picture frame, a navigator, or the like.
- LCD liquid crystal display
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
- The present invention relates to a light guide plate (LGP) positioning structure, a backlight module and a display device.
- Abrupt change of optical cross-section easily occurs on the periphery of a light guide plate (LGP) positioning structure of a backlight, then, an abrupt change of optical effect occurs, so that a shadow is generated at a point far away from a light source, and a bright area is generated at a position near the light source. Currently, to solve the problem, a common way is to arrange a reflector plate on the periphery of the LGP positioning structure to balance the bright and dark shadows caused by abrupt change of edge. However, the reflector plate is easy to fall off and is difficult to adjust the shadow problem.
- [0003.1]
CN 204 153 707 U discloses a fixing structure of a LGP and a backlight source structure with the fixing structure. The fixing structure of the LGP is for fixing the LGP on a rubber frame with a light source assembly. A plurality of outwards protruding clamping buckles are arranged on two opposite side edges of the LGP. Clamping slots matched with the clamping buckles are formed in positions, which correspond to the clamping buckles, on the inner side of the rubber frame. The clamping buckles are matched with the clamping slots. The range in which the perpendicular distance from the position to the light source assembly is smaller than 1/3 of the length of the side edge of the LGP is a light source region. The clamping buckles in the light source region are chamfered, and the radiuses of chamfers are 0.4-0.6mm. When light rays emitted by the light source assembly are projected to the clamping buckle structures, the chamfered clamping buckle structures emit the light rays towards different angles, so that the condensation effect is weakened, and dazzling bright rays on the light guide plate can be attenuated and even eliminated; the good luminous effect of the light guide plate is guaranteed. - It is an object of the present invention to provide a light guide plate (LGP) positioning structure, a backlight module and a display device.
- The object is achieved by the features of
independent claim 1. Further embodiments are defined in the dependent claims. - Embodiments of the present disclosure will be described in more detail below with reference to accompanying drawings to allow an ordinary skill in the art to more clearly understand embodiments of the present disclosure, in which:
-
FIG. 1 is a schematic structural view of a LGP positioning structure in an embodiment of the present disclosure; -
FIG. 2 is a schematic structural view of a positioning member in an embodiment of the present disclosure; and -
FIG. 3 is a schematic diagram of positioning grooves in the LGP positioning structure in an embodiment of the present disclosure. - Technical solutions of the embodiments will be described in a clearly and fully understandable way in connection with the drawings related to the embodiments of the disclosure. It is apparent that the described embodiments are just a part but not all of the embodiments of the disclosure. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any creative work, which shall be within the scope of the disclosure.
- Unless otherwise defined, all the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms, such as "first," "second," or the like, which are used in the description and the claims of the present disclosure, are not intended to indicate any sequence, amount or importance, but for distinguishing various components. The terms, such as "comprise/comprising," "include/including," or the like are intended to specify that the elements or the objects stated before these terms encompass the elements or the objects and equivalents thereof listed after these terms, but not preclude other elements or objects. The terms, "on," "under," "left," "right," or the like are only used to indicate relative position relationship, and when the position of the object which is described is changed, the relative position relationship may be changed accordingly.
- As shown in
FIG. 1 , an embodiment provides a light guide plate (LGP) positioning structure, which comprises a plurality ofpositioning members 20 disposed between a first surface of aLGP 3 and aback plate 1. A first surface of theLGP 3 is adjacent to an incident surface of theLGP 3. The color of the positioning members near the incident surface is darker than the color of the positioning members away from the incident surface. - Abrupt change of optical effect easily occurs on the periphery of the LGP positioning structure, so that a shadow is generated at a point away from a
light source 4, and a bright area is generated at a position near thelight source 4. For instance, for an edge-lit backlight, a shadow can be easily generated at a point away from the incident surface of theLGP 3, and a bright area can be easily generated at a point near the incident surface of theLGP 3. The embodiments of the present disclosure solve the problem through the positioning members at different positions and different color shades. For instance, the color of the positioning members disposed at the bright areas is dark, and the color of the positioning members disposed at positions where the shadows are generated is light. - In the embodiment, it includes two
positioning members 20. As shown inFIG. 1 , the positioning member near the incident surface is afirst positioning member 201, and the positioning member away from the incident surface is asecond positioning member 202. But the embodiment of the present disclosure is not limited thereto. For instance, three, four or more positioning members may be arranged. - In the embodiment, as shown in
FIG. 1 , the color of thefirst positioning member 201 near the incident surface is black, and the color of thesecond positioning member 202 away from the incident surface is white. That is to say, the surface reflectivity of thefirst positioning member 201 near the incident surface is lower than the surface reflectivity of thesecond positioning member 202 away from the incident surface. - For instance, the first positioning member is made from black rubber, the surface reflectivity of which is less than or equal to about 30% and greater than or equal to about 5%; and the second positioning member is made from white rubber, the surface reflectivity of which is less than or equal to about 98% and greater than or equal to about 45%. The ratio of the reflectivity of the positioning members arranged from an incident end to a far-reaching position is directly proportional to the ratio of the distance from the positioning members to the light source. But the embodiment of the present disclosure is not limited thereto. For instance, in a case of a plurality of positioning members arranged, the color of the positioning members may be gradually lighter from a proximal end near the incident surface to a distal end away from the incident surface. That is to say, the surface reflectivity of the positioning members is gradually increased from the proximal end near the incident surface to the distal end away from the incident surface.
- The setting form of the color of the plurality of positioning members arranged along a first direction may be various, for example, they may be arranged regularly or irregularly. For instance, in the embodiment, the color of the plurality of positioning members is gradually changed from darker to lighter along the X direction in
FIG. 1 , namely the first direction, that is to say, the reflectivity is gradually increased along the X direction inFIG. 1 . The first direction is the direction extended from a first end of the first surface adjacent to the incident surface to a second end opposite to the first end, and the first direction refers to a direction parallel to the direction from the first end to the second end. As shown inFIG. 1 , the X direction is unidirectional. - To further solve the bright and dark problem of the periphery of the LGP positioning structure, in another embodiment, for example, protrusions or recessions are disposed on one surface of the
positioning member 20 contacting theLGP 3. - As shown in
FIG. 2 , for instance, when the protrusions 5 are disposed on one surface of thepositioning member 20 contacting the first surface of theLGP 3, the number of the protrusions 5 on the positioning members near the incident surface is less than the number of the protrusions 5 on the positioning members away from the incident surface. By arranging the protrusions 5 on the positioning members contacting a side surface of the LGP, the light scattering effect is enhanced at contact positions. Scattered light is emitted from a light-emitting surface of the LGP, where the brightness of the light-emitting surface of the LGP is increased. The number of the protrusions 5 disposed at distal-end positions away from the incident surface, where shadows can be easily generated, is correspondingly increased to enhance the brightness at the positions, and the bright and dark problem can be further solved. - The position and the number of the plurality of protrusions 5 arranged along the first direction may be various, for example, they may be arranged regularly or irregularly. In the embodiment, the number of the protrusions 5 on the plurality of positioning members is gradually increased along the first direction.
- For instance, when the recessions are formed on one surface of the positioning member contacting the first surface of the
LGP 3, the number of the recessions on the positioning members near the incident surface is greater than the number of the recessions on the positioning members away from the incident surface. The recessions on the positioning members do not contact the side surface of the LGP. The light scattering effect is reduced here, and the brightness of light emitted from the light-emitting surface of the LGP is reduced. The number of the recessions at distal-end positions away from the incident surface, where the shadows can be easily generated, is correspondingly decreased to enhance the brightness at the positions, and the bright and dark problem can be further solved. - The position and the number of the plurality of recessions arranged along the first direction may be various, may be regular and may also be irregular. In the embodiment, the number of the recessions on the plurality of positioning members is gradually reduced along the first direction.
- For instance, in an embodiment, as shown in
FIG. 3 ,positioning grooves 30 are formed on the first surface of theLGP 3, and thepositioning members 20 are received in thepositioning grooves 30. The structural form of thepositioning grooves 30 is adapted to that of thepositioning members 20. - An embodiment of the present disclosure also provides a backlight module, which comprises the LGP positioning structure.
- An embodiment of the present disclosure also provides a display device, which comprises the backlight module. The display device may be a liquid crystal display (LCD) device, for instance, and it is not limited to be: a mobile phone, a tablet PC, a TV, a display, a notebook computer, a digital picture frame, a navigator, or the like.
Claims (11)
- A light guide plate, LPG, positioning structure, comprising: a plurality of positioning members (20) arranged between a first surface of a LGP (3) and a back plate (1), wherein the first surface of the light guide plate (3) is adjacent to a light incident surface of the LGP (3) for light from a light source (4), wherein a first direction (X) being a direction extending from a first end of the first surface near the light incident surface of the LGP (3) toward a second end of the first surface opposite to the first end and away from the light incident surface of the LGP (3), characterized in that
a surface reflectivity of each positioning member (20) at a side of the light guide plate (3) near the incident surface is lower than a surface reflectivity of any other positioning members (20) at the same side of the light guide plate (3) away from the light incident surface. - The LGP positioning structure according to claim 1, wherein the surface reflectivity of the plurality of positioning members (20) at the same side of the LPG (3) is gradually increased along the first direction (X).
- The LGP positioning structure according to claim 1, wherein the color of the plurality of positioning members (20) is gradually changed from darker to lighter along the first direction (X).
- The LGP positioning structure according to any one of claims 1 to 3, wherein protrusions (5) or recessions are arranged on a surface of the positioning members (20) contacting the first surface of the LGP (3).
- The LGP positioning structure according to claim 4, wherein when the protrusions (5) are arranged on the surface of the positioning members (20) contacting the first surface of the LGP (3), a number of the protrusions (5) on the positioning members (20) near the incident surface is less than a number of the protrusions (5) on the positioning members (20) away from the incident surface.
- The LGP positioning structure according to claim 5, wherein the number of the protrusions (5) on the plurality of positioning members (20) is gradually increased along the first direction (X).
- The LGP positioning structure according to claim 4, wherein when the recessions are arranged on the surface of the positioning members (20) contacting the first surface of the LGP (3), a number of the recessions on the positioning members (20) near the incident surface is greater than a number of the recessions on the positioning members (20) away from the incident surface.
- The LGP positioning structure according to claim 7, wherein the number of the recessions on the plurality of positioning members (20) is gradually decreased along the first direction (X).
- The LGP positioning structure according to any one of claims 1 to 8, wherein positioning grooves (30) are arranged on the first surface, the positioning members (20) are configured to be received in the positioning grooves (30).
- A backlight module, comprising the light guide plate positioning structure according to any one of claims 1 to 9.
- A display device, comprising the backlight module according to claim 10.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720119584.3U CN206421060U (en) | 2017-02-09 | 2017-02-09 | Light guide plate positioning structure, backlight module, display device |
PCT/CN2017/099970 WO2018145449A1 (en) | 2017-02-09 | 2017-08-31 | Light guide plate positioning structure, backlight module, and display apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3581994A1 EP3581994A1 (en) | 2019-12-18 |
EP3581994A4 EP3581994A4 (en) | 2020-12-16 |
EP3581994B1 true EP3581994B1 (en) | 2023-10-04 |
Family
ID=59570361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17842377.8A Active EP3581994B1 (en) | 2017-02-09 | 2017-08-31 | Light guide plate positioning structure, backlight module, and display apparatus |
Country Status (9)
Country | Link |
---|---|
US (1) | US10718893B2 (en) |
EP (1) | EP3581994B1 (en) |
KR (1) | KR102207056B1 (en) |
CN (1) | CN206421060U (en) |
AU (1) | AU2017398581B2 (en) |
BR (1) | BR112018068457B1 (en) |
MX (1) | MX2018011057A (en) |
RU (1) | RU2719343C1 (en) |
WO (1) | WO2018145449A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN206421060U (en) | 2017-02-09 | 2017-08-18 | 京东方科技集团股份有限公司 | Light guide plate positioning structure, backlight module, display device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002196312A (en) * | 2000-12-25 | 2002-07-12 | Hitachi Ltd | Liquid crystal display device |
TWI287130B (en) * | 2001-01-16 | 2007-09-21 | Au Optronics Corp | Backlight module and a frame for fixing a light guide plate |
CN100483210C (en) | 2005-10-18 | 2009-04-29 | 群康科技(深圳)有限公司 | Back light module and LCD device |
JP5414224B2 (en) * | 2007-10-19 | 2014-02-12 | 富士フイルム株式会社 | Surface lighting device |
KR20120017992A (en) * | 2010-08-20 | 2012-02-29 | 삼성모바일디스플레이주식회사 | Display divce |
TWI431346B (en) * | 2010-12-08 | 2014-03-21 | Young Lighting Technology Corp | Light guide module, backlight module and fabricating method for the light guide module |
KR101767973B1 (en) * | 2011-08-16 | 2017-08-16 | 삼성디스플레이 주식회사 | Backlight assembly |
CN202361183U (en) * | 2011-11-08 | 2012-08-01 | 深圳市嘉泰宏实业有限公司 | Light-leaking-proof LED (Light-emitting Diode) backlight source structure |
KR101970554B1 (en) * | 2012-05-24 | 2019-04-19 | 엘지디스플레이 주식회사 | Back light unit and liquid crystal display device using the same |
CN202769470U (en) * | 2012-09-18 | 2013-03-06 | 青岛海信电器股份有限公司 | Side light type backlight module and display equipment |
CN102943980A (en) * | 2012-11-15 | 2013-02-27 | 京东方科技集团股份有限公司 | Backlight module and liquid crystal display device |
US9081127B2 (en) * | 2013-01-06 | 2015-07-14 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Positioning structure for light-guiding plate and back frame, backlight module and liquid crystal display device thereof |
CN203311025U (en) * | 2013-05-21 | 2013-11-27 | 京东方科技集团股份有限公司 | A light guide plate, a backlight module group, and a display apparatus |
US20160154172A1 (en) * | 2013-09-04 | 2016-06-02 | Sharp Kabushiki Kaisha | Lighting device and display device |
CN204153707U (en) * | 2014-10-28 | 2015-02-11 | 深圳市普尔菲斯光电技术有限公司 | The fixed structure of light guide plate and back light source structure |
CN206421060U (en) * | 2017-02-09 | 2017-08-18 | 京东方科技集团股份有限公司 | Light guide plate positioning structure, backlight module, display device |
-
2017
- 2017-02-09 CN CN201720119584.3U patent/CN206421060U/en active Active
- 2017-08-31 US US15/757,106 patent/US10718893B2/en active Active
- 2017-08-31 EP EP17842377.8A patent/EP3581994B1/en active Active
- 2017-08-31 RU RU2018132630A patent/RU2719343C1/en active
- 2017-08-31 WO PCT/CN2017/099970 patent/WO2018145449A1/en active Application Filing
- 2017-08-31 BR BR112018068457-0A patent/BR112018068457B1/en active IP Right Grant
- 2017-08-31 KR KR1020187026602A patent/KR102207056B1/en active IP Right Grant
- 2017-08-31 AU AU2017398581A patent/AU2017398581B2/en active Active
- 2017-08-31 MX MX2018011057A patent/MX2018011057A/en unknown
Also Published As
Publication number | Publication date |
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KR20180110128A (en) | 2018-10-08 |
US20190079241A1 (en) | 2019-03-14 |
WO2018145449A1 (en) | 2018-08-16 |
BR112018068457A2 (en) | 2019-01-22 |
AU2017398581B2 (en) | 2019-09-12 |
US10718893B2 (en) | 2020-07-21 |
CN206421060U (en) | 2017-08-18 |
KR102207056B1 (en) | 2021-01-25 |
EP3581994A1 (en) | 2019-12-18 |
BR112018068457B1 (en) | 2023-10-03 |
EP3581994A4 (en) | 2020-12-16 |
MX2018011057A (en) | 2019-01-21 |
AU2017398581A1 (en) | 2018-10-04 |
RU2719343C1 (en) | 2020-04-17 |
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